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EICMA: Aprilia SL 750 Shiver
It is certainly no easy matter to take the lead in a class as
fiercely competitive as the medium powered naked class. A class
where the battle is not just about technology and performance,
but also design, economy of use and riding ease and pleasure,
elements which are not always compatible and are particularly
demanding for designers and engineers.
Aprilia has picked up this challenge and interpreted it by applying
its own successful philosophy to a completely new design, destined
to set new standards for years to come. A bike both strongly
aggressive and at the same time clean-cut and elegant, in perfect
Aprilia style. A bike at the top of its class for its sporty
personality, designed on the basis of the know-how of a company
which has to date won 250 world championship victories.
The pride of all Aprilia bikes, refined mechanics and a top class
chassis, are once again the key to the success of the 750 V2.
The Aprilia SL 750 Shiver is the naked everyone was waiting for.
A design able to satisfy the disparate needs of those buying
this type of bike. From everyday use to a trip along mountain
passes or use on the racetrack, the Aprilia SL 750 Shiver is
completely at home in any situation, guaranteeing pure riding
pleasure at all times.
Light, agile and powerful, it has a new generation engine and
the most advanced technical features in its class. The brand
new 90° V2 produced entirely in-house by Aprilia is extremely
compact. Above all, thanks to the advanced electronic management,
it can deliver power comparable to four cylinder engines in the
same class, but with much more favourable torque at low revs
for an efficient and pleasing ride even on everyday routes. True
to the Aprilia tradition, the chassis simply has no rivals in
its class. The innovative mixed trellis/aluminium frame provides
standard setting rigidity. All this makes the bike extremely
compact, perfect even for the beginner.
With a dry weight of just 189 kg, the lightness of the Aprilia
SL 750 Shiver also satisfies the most canny motorcyclist, thanks
to its manoeuvrability and engine performance a bike able to
accompany its owner from his first few metres on two wheels up
to his complete motorcycling maturity.
The main characteristics of the Aprilia 750 are:
90° V2 engine with four valve cylinder head, double overhead
camshaft and liquid cooling.
Ride by Wire technology for electronic control of the throttle
bodies;
Electronic fuel injection with latest generation injectors;
Mixed gear and chain valve timing;
Three way catalytic converter on the exhaust, Euro 3 compliant
Dismountable trellis/aluminium frame for high torsional rigidity;
Aluminium swingarm with reinforcement truss and lateral shock
absorber;
43 mm upside down fork;
Racing brakes with radial caliper at front;
THE DESIGN: SHAPE AT THE SERVICE OF POWER
As with every Aprilia product, the SL 750 Shiver has a highly
innovative design where form and function come together to create
an almost perfect object. The Aprilia SL 750 Shiver is pure technology
and this is evident in its sharp, sporty lines.
The frame and engine are the foundations of the design and are
also, rightly, the main elements characterising the look of the
SL 750 Shiver. Each element has been designed to be not just
beautiful but also functional. The design is refined, but at
the same time clean-cut, without too many frills for the maximum
possible functionality. The Aprilia SL 750 Shiver exhaust is
also a very distinctive design element. On the Aprilia SL 750
Shiver, the technical component becomes a design element at the
same time, creating a bike both aggressive and at the same time
elegant.
The tank-seat-tail assembly further emphasises the compactness
of the bike. The rider becomes one with the machine, perfectly
integrated in the short, agile, slim bike. This helps establish
an immediate feeling between the rider and the bike, making everyone
feel as if they have always been riding it. The strongly tapering
tail also incorporates the twin exhaust with triangular silencers,
a feature which makes the design even more aggressive, while
keeping weight distribution highly symmetrical.
The Aprilia SL 750 Shiver is compact, functional and attractive.
The adoption of a side shock absorber not just adds a further
distinctive feature to the look of the bike, but also enables
the length of the bike.
THE V90 ENGINE: TECHNOLOGY IN THE PURE STATE
The V90 engine inherits all Aprilia's experience in high performance
mechanics. Endless hours of bench and road tests have produced
a genuine masterpiece of mechanical engineering, capable not
just of high performance, but also complete reliability. Thanks
to its particular technical characteristics, the Aprilia V90
combines high specific power with maximum usability and easy
riding.
A generous heart, destined to set new performance and technology
standards for medium powered bikes. The engine has been designed
by the Aprilia Research and Development department which set
out to create a powerful and reliable engine requiring very limited
maintenance.
The quest for performance at the top of its class led to the
adoption of a number of advanced and innovative technical features:
90° V structure;
Ride by Wire technology;
Bore and stroke ratio markedly supersquare;
Four valves per cylinder;
Ignition with two plugs per cylinder;
Double overhead camshaft, controlled by a mixed chain and gear
system;
Electronic fuel injection with two throttle bodies;
Three way catalytic converter and lambda probe oxygen sensor
(Euro 3 compliant).
 For this type of bike, the 90°
V arrangement of the cylinders was found to be the best solution
in terms of performance and size. With consistently generous
torque available across a wide range of revs and negligible vibrations,
the Aprilia V2 750 is full and powerful at the top of its class.
The timing deserves special mention. Motion is transmitted to
the four valves per cylinder and double camshaft by a mixed gear/chain
system. This technical application, already adopted by Aprilia
in the V60 mounted on the RSV 1000 R, enables the size of the
engine to be kept down, while guaranteeing more precise and reliable
timing. The chain is shorter, for less overall stress and a longer
working life; this makes the engine shorter.
The latest generation injection system uses fine atomising injectors.
This, together with the ignition with two spark plugs per cylinder,
ensures optimum combustion for an engine which is not just more
powerful, but also cleaner.
The sophisticated electronic management makes the Aprilia SL
750 Shiver a new benchmark for nakeds. In the Aprilia SL 750
Shiver, Ride by Wire technology becomes part of the standard
equipment of a naked bike for the first time in the history of
motorcycling. The electronic accelerator management optimises
opening of the throttle bodies according to numerous parameters,
including engine speed, gear selected and position of the throttle.
The engine is therefore always able to offer optimum performance
in acceleration and the lowest possible consumption for a still
more fluid and profitable ride. This innovative solution guarantees
even fuller and more regular output at low and medium speeds,
optimising running of the engine, even with the choke.
Thanks to the technology used, the Aprilia V90 manages to deliver
exceptionally high power for the engine configuration. 95 HP
at 9000 revs and maximum torque of 81 Nm at 7000 revs are excellent
for a twin of this capacity. The high torque available even at
low speeds makes the Aprilia SL 750 Shiver incomparable to ride
on mixed routes.
A latest generation engine management unit controls all engine
parameters. All data passes through a CAN (Controlled Area Network)
line to the instrument panel, which also acts as a diagnostic
terminal. The CAN line uses just two wires to transmit all data.
This simplifies the electrical system enormously as well as reducing
the total weight of the bike.
The exhaust is made entirely from stainless steel. The manifolds
come together under the seat in a single silencer with twin tail
pipes. The large volume (10 litres) contributes to perfect engine
breathing for excellent efficiency.
THE FRAME: RATIONALITY AND EFFICIENCY
 Experts have always acknowledged
that Aprilia bikes have the best chassis in their class. The
Aprilia SL 750 Shiver is concrete confirmation that once again
Aprilia has managed to create a chassis which is both extremely
easy and intuitive and incredibly high performance. The frame
exploits all the knowledge Aprilia has gained in racing and also
draws on new studies on mixed structures with the futuristic
RXV and SXV, already winners of a number of titles during their
debut on the racetrack. The top part of the tubular steel trellis
is connected to large side plates by means of special high strength
bolts. This creates an extremely rigid lightweight frame, the
best solution to harness all the horsepower of the Aprilia V90.
Creation of an Aprilia bike always involves synergy between chassis
and engine engineers. The fundamental design choices for the
V90 engine led to construction of a highly rational and efficient
frame. The reduced longitudinal dimensions of the engine made
it possible to design a short, agile bike, helped by the particular
side positioning of the shock absorber, not a simple cosmetic
mannerism, but a precise technical decision which created valuable
space for the exhaust manifolds whose shape and size have been
calibrated perfectly to ensure maximum engine efficiency. This
enabled the optimum exhaust manifold configuration to be obtained,
without too heavily affecting the length of the bike and without
exposing the shock absorber, a fundamental element for the ride,
to heat stress.
The aluminium swingarm with reinforcement truss has been sized
specifically to support the asymmetrical stresses caused by lateral
positioning of the shock absorber. The rigidity of the swingarm
sets new standards for the class.
SUSPENSION
 Optimum
definition of the suspension is an obsession for Aprilia designers.
Even such a "simple" bike as a naked must have the
best possible available. The Aprilia SL 750 Shiver therefore
stands out from the pack in this delicate area as well.
The 43 mm upside down fork with forged feet to support the radial
calipers provides benchmark smoothness. The 120 mm wheel travel
makes the bike equally at home on about town trips and mountain
routes. The bottom steering yoke is made from forged aluminium,
the top steering yoke from forged anodised aluminium.
The side shock absorber rests directly on the swingarm, according
to the cantilever principle, and provides adjustments for spring
preload and hydraulic rebound. Rear wheel travel is 130 mm.
THE BRAKES
The best technology currently available is incorporated in the
Aprilia SL 750 Shiver, the first medium powered naked with a
radial caliper system, a feature emphasising even further (as
if it were needed) the sporty personality of the design. The
320 mm front disks are the same as used in the racing flagships,
the RSV 1000 and Tuono 1000 R.
At the back, a 245 mm disk with twin piston caliper provides
adequate backup for the front circuit.
The front and rear braking circuits both use aeronautical metal
braid hoses to eliminate the pressure variations associated with
conventional rubber brake lines, guaranteeing maximum braking
precision for a top level system.
COMPONENTS
The Matrix instrument panel: the combined digital and analog
instrument panel receives all the data over a CAN line and acts
as an integral part of the self-diagnostics system as it also
has a memory. The design is extremely modern, compact and lightweight.
All functions can be switched by means of the handlebar control.
The LED backlighting can be adjusted to three levels: white in
the analogue zone and red in the digital zone.
The biconical aluminium handlebars are a direct reference to
the handlebars of the Tuono, Aprilia's naked flagship. Maximum
lightness and maximum control. A top quality component no other
bike in its class can boast.
The double parabola front light has complex surfaces and a double
parking light.
Technical Specifications
APRILIA SL 750 Shiver
Engine
Type: Aprilia V90 Four stroke longitudinal 90° V twin.
Liquid cooling. Double overhead camshaft with mixed gear/chain
drive; four valves per cylinder.
Fuel: Unleaded petrol.
Bore x stroke: 92 x 56.4 mm
Total displacement: 749.9 cc
Compression ratio: 11 : 1
Maximum power at the crank: 95 HP at 9000 rpm.
Maximum torque at the crank: 8.25 kgm at 7000 rpm.
Fuel system: Integrated engine management system. Injection with
Ride by Wire technology control of the throttle bodies
Ignition: Digital electronic, integrated with the injection,
two spark plugs per cylinder
Starting: Electric
Exhaust: Two in one system in 100% stainless steel with three-way
catalytic converter and Lambda probe
Generator: 450 W at 6000 rpm.
Lubrication: Wet sump
Gearbox: six speed
Transmission Ratio:
1° 36/14 (2.57)
2° 32/17 (1.88)
3° 30/20 (1.5)
4° 28/22 (1.27)
5° 23/26 (0.88)
6° 24/25 (0.96)
Clutch: Multi-plate in oil bath, cable operated.
Primary drive: Spur gears, transmission ratio: 60/31 (1.75)
Final drive: Chain
Transmission ratio: 16/44
Chassis
Frame: Dismountable steel trellis connected with high strength
bolts to aluminium side plates. Dismountable rear frame.
Front suspension: 43 mm upside-down fork. 120 mm wheel travel.
Rear suspension: Aluminium alloy swingarm with reinforcement
truss. Hydraulic shock absorber adjustable in spring preload
and rebound damping. Wheel travel: 130 mm.
Brakes
Front: Double stainless steel floating disc (Ø 320 mm
). Four piston radial calipers. Metal braided brake line.
Rear: Steel disk ( 245 mm) with twin piston caliper. Metal braided
brake line.
Wheels: In aluminium alloy
Front: 3.50 X 17" Rear: 6.00 X 17"
Tyres: Radial tubeless;
front: 120/70 ZR 17
rear: 180/55 ZR 17
Dimensions
Overall length 2066 mm
Overall width: 815 mm (at handlebars)
Overall height: 1132 mm
Seat height: 810 mm
Wheelbase: 1449 mm
Trail: 109 mm
Rake angle: 25.7°
Dry weight: 189 kg
Tank capacity: 15 lt
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